networking/ip.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   4  *
   5  * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
   6  *
   7  * Changes:
   8  * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
   9  * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
  10  */
  11
  12 #include "libbb.h"
  13
  14 #include "libiproute/utils.h"
  15 #include "libiproute/ip_common.h"
  16
  17 #if ENABLE_FEATURE_IP_ADDRESS \
  18  || ENABLE_FEATURE_IP_ROUTE \
  19  || ENABLE_FEATURE_IP_LINK \
  20  || ENABLE_FEATURE_IP_TUNNEL \
  21  || ENABLE_FEATURE_IP_RULE
  22
  23 static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
  24 {
  25         bb_show_usage();
  26 }
  27
  28 typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
  29
  30 static int ip_do(ip_func_ptr_t ip_func, char **argv)
  31 {
  32         argv = ip_parse_common_args(argv + 1);
  33         return ip_func(argv);
  34 }
  35
  36 #if ENABLE_FEATURE_IP_ADDRESS
  37 int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  38 int ipaddr_main(int argc UNUSED_PARAM, char **argv)
  39 {
  40         return ip_do(do_ipaddr, argv);
  41 }
  42 #endif
  43 #if ENABLE_FEATURE_IP_LINK
  44 int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  45 int iplink_main(int argc UNUSED_PARAM, char **argv)
  46 {
  47         return ip_do(do_iplink, argv);
  48 }
  49 #endif
  50 #if ENABLE_FEATURE_IP_ROUTE
  51 int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  52 int iproute_main(int argc UNUSED_PARAM, char **argv)
  53 {
  54         return ip_do(do_iproute, argv);
  55 }
  56 #endif
  57 #if ENABLE_FEATURE_IP_RULE
  58 int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  59 int iprule_main(int argc UNUSED_PARAM, char **argv)
  60 {
  61         return ip_do(do_iprule, argv);
  62 }
  63 #endif
  64 #if ENABLE_FEATURE_IP_TUNNEL
  65 int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  66 int iptunnel_main(int argc UNUSED_PARAM, char **argv)
  67 {
  68         return ip_do(do_iptunnel, argv);
  69 }
  70 #endif
  71
  72
  73 int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  74 int ip_main(int argc UNUSED_PARAM, char **argv)
  75 {
  76         static const char keywords[] ALIGN1 =
  77                 IF_FEATURE_IP_ADDRESS("address\0")
  78                 IF_FEATURE_IP_ROUTE("route\0")
  79                 IF_FEATURE_IP_ROUTE("r\0")
  80                 IF_FEATURE_IP_LINK("link\0")
  81                 IF_FEATURE_IP_TUNNEL("tunnel\0")
  82                 IF_FEATURE_IP_TUNNEL("tunl\0")
  83                 IF_FEATURE_IP_RULE("rule\0")
  84                 ;
  85         static const ip_func_ptr_t ip_func_ptrs[] = {
  86                 ip_print_help,
  87                 IF_FEATURE_IP_ADDRESS(do_ipaddr,)
  88                 IF_FEATURE_IP_ROUTE(do_iproute,)
  89                 IF_FEATURE_IP_ROUTE(do_iproute,)
  90                 IF_FEATURE_IP_LINK(do_iplink,)
  91                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
  92                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
  93                 IF_FEATURE_IP_RULE(do_iprule,)
  94         };
  95         ip_func_ptr_t ip_func;
  96         int key;
  97
  98         argv = ip_parse_common_args(argv + 1);
  99         key = *argv ? index_in_substrings(keywords, *argv++) : -1;
 100         ip_func = ip_func_ptrs[key + 1];
 101
 102         return ip_func(argv);
 103 }
 104
 105 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */